On and after the commencement of this Act, it shall not be lawful for any person to have in his possession an unregistered bull unless such possession is authorized by a permit under section 3 of this Act. The Minister may, in prescribed circumstances and on payment of the prescribed fee, grant to a person a permit authorizing the person to have in his possession an unregistered bull subject to and in accordance with such conditions as may be specified in the permit. Section 4 requires the produ